Good luck with your efforts, Jake.
As I'm sure you appreciate, the issue of the PA volume is a tricky one. Needs a fine balance, and/or extremely good speakers, for people to be able to hear announcements/music but still be able to talk to neighbouring fans.
Worst places I've encountered, in more ways than one, are Cheltenham and Stevenage where the PA is so loud you can't even talk to someone sitting in the next seat. Perhaps whoever set up those systems only ever communicates to those sitting next to them by text.
